Atoms Flashcards
1
Q
Atoms
A
The building blocks of all matter.
2
Q
Define atomic number
A
number of protons in a nucleus of an atom. (can also be the same number as electrons if its not an ion)
3
Q
The numbers of protons identfiy?
A
The element
4
Q
Isotopes
A
a variation of the same element with a different amount of neutrons in the nucleus.
5
Q
What is an ion?
A
a positively or negatively charged atom. It’s when the # of electrons differ from the # of protons.
6
Q
Types of ion
A
cation and anion
7
Q
Cation
A
a positively charged atom. (loss of electrons)
8
Q
Anion
A
a negatively charged atom. (gain of electrons)
9
Q
Proton symbol
A
p+
10
Q
Proton charge
A
1+
11
Q
Proton mass
A
1+
12
Q
Neutrons symbol
A
n
13
Q
Neutrons mass
A
1
14
Q
Neutrons charge
A
0
15
Q
Electrons mass
A
1/1836 (electrons are smaller than protons and neutrons)
